CN220272772U

CN220272772U - Grounding device

Info

Publication number: CN220272772U
Application number: CN202321975116.8U
Authority: CN
Inventors: 雷鹏飞; 罗海波; 刘文军; 姚毅; 肖利军; 黄�俊; 谢波; 周义伦
Original assignee: Hunan Yanneng Construction Group Co ltd
Current assignee: Hunan Yanneng Construction Group Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-29
Anticipated expiration: 2033-07-26

Abstract

The utility model relates to the technical field of switch performance test, in particular to a grounding device, which comprises an inner sleeve rod, wherein an outer sleeve rod is sleeved on the circumferential outer wall of the inner sleeve rod, a locking assembly is arranged between the outer sleeve rod and the inner sleeve rod, a fixing cap is fixedly arranged at the top of the circumferential outer wall of the inner sleeve rod, a grounding wire clamp is arranged at the top of the fixing cap, a grounding plug is inserted at the bottom of the circumferential inner wall of the inner sleeve rod, the grounding plug is positioned in the outer sleeve rod, and a grounding wire is fixedly arranged between the top of the grounding plug and the inner wall of the top of the fixing cap. According to the utility model, the whole grounding wire has the functions of length adjustment and resetting, the grounding requirements of switches with different heights are met, and after the test is completed, the grounding wire is stored in the inner sleeve rod, so that the problem of winding disorder caused by longer grounding wire in the prior art is solved, and the grounding plug is stored at the bottom of the outer sleeve rod, thereby avoiding the potential safety hazard problem at the tip of the grounding plug.

Description

Grounding device

Technical Field

The utility model relates to the technical field of switch performance test, in particular to a grounding device.

Background

Circuit breakers (switches) are important devices in substations, which are the main control and protection elements in the power network, and which play an important role in making and breaking the circuit, cutting and isolating the faulty parts. The breaker is used for breaking the fault current through the load current under the normal running condition of the system when the system is in grounding or short-circuit fault, thereby ensuring that the equipment in the station is not affected by the fault current to the maximum extent, avoiding further expansion of accidents and reducing load loss. Therefore, the mechanical characteristic test of the circuit breaker is very important for safe and stable operation of the power grid, and the circuit breaker needs to utilize the grounding device to carry out the protection treatment to the greatest extent when carrying out the mechanical characteristic test, so that the power grid accident is avoided.

At present, when testing the mechanical characteristics of a switch, the grounding device is generally arranged on the switch, one end of the grounding device is arranged on the ground, and the middle of the grounding device is connected by adopting a longer grounding wire, however, the grounding wire cannot be well stored after being used, and the problem of winding disorder of the grounding wire of the grounding device is easy to occur, so that the design of the grounding device is needed to solve the problem.

Disclosure of Invention

The present utility model is directed to a grounding device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the grounding device comprises an inner loop bar, wherein an outer loop bar is sleeved on the circumferential outer wall of the inner loop bar, a locking assembly is arranged between the outer loop bar and the inner loop bar, a fixing cap is fixedly arranged at the top of the circumferential outer wall of the inner loop bar, a grounding wire clamp is arranged at the top of the fixing cap, a grounding plug is inserted into the bottom of the circumferential inner wall of the inner loop bar, the grounding plug is positioned in the outer loop bar, a grounding wire is fixedly arranged between the top of the grounding plug and the inner wall of the top of the fixing cap, a wiring hole for the grounding wire to pass through is formed in the top of the inner loop bar, and the grounding wire is in a spiral spring shape;

and a limiting component is arranged at the bottom of the grounding plug and the bottom of the outer sleeve rod.

Preferably, the ground clamp comprises a fixing frame fixed on one side of the top of the fixing cap, mounting grooves are formed in two sides of the fixing frame, clamping jaws are connected to the inner walls of the mounting grooves in a rotating mode, and a V-shaped buffer frame is fixedly arranged between one side of each clamping jaw and the inner wall of each mounting groove.

Preferably, the fixing cap, the fixing frame and the clamping jaw are all made of conductive metal materials, and the V-shaped buffer frame is made of memory metal materials.

Preferably, the limiting component comprises L-shaped clamping grooves formed in the bottom of the outer sleeve in an equidistant mode, a fixing sleeve is fixed on the circumferential outer wall of the grounding plug, holding rods distributed in an equidistant mode are fixed on the circumferential outer wall of the fixing sleeve, and the holding rods are clamped in the L-shaped clamping grooves.

Preferably, the outer wall of the circumference of the outer sleeve rod, which is close to the bottom, is fixed with a handle sleeve, and the outer sleeve rod, the handle sleeve, the inner sleeve rod, the holding rod and the fixing sleeve are all designed to be made of insulating materials.

Preferably, the locking assembly comprises limit holes which are formed in two sides of the inner sleeve rod at equal intervals, through holes which correspond to the limit holes are formed in the tops of two sides of the outer sleeve rod, limit protrusions are inserted into the inner walls of the through holes and the inner walls of the limit holes, and one ends of the limit protrusions are fixed with L-shaped toggle rods.

Preferably, guide slots are formed in the top and the bottom of the through hole, movable plates inserted in the guide slots are fixed on one sides of the top and one side of the bottom of the limiting protrusion, and a reset spring is fixed between one end of each movable plate and one end of each guide slot.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, an outer loop bar, an inner loop bar, a locking component, a fixing cap, a grounding wire clamp, a grounding wire, a grounding plug and the like are adopted to form a whole grounding device structure with adjustable length, the grounding wire clamp is in butt joint with a switch, a holding bar in a limiting component is separated from an L-shaped clamping groove, and the grounding plug falls under the action of self gravity and is inserted into the ground surface to form grounding operation, so that the use is convenient;

according to the utility model, the grounding wire has a spiral spring-shaped structure, so that the whole grounding wire has the functions of length adjustment and resetting, the grounding requirements of switches with different heights are met, and after the test is finished, the grounding wire can be stored in the inner sleeve rod under the effect of resetting the grounding wire, the problem that winding of the grounding wire is disordered due to the fact that the grounding wire is longer in the prior art is solved, the grounding plug is stored at the bottom of the outer sleeve rod, and the potential safety hazard problem at the tip of the grounding plug is avoided.

Drawings

Fig. 1 is a schematic overall structure of a grounding device.

Fig. 2 is an overall cross-sectional view of a grounding device.

Fig. 3 is a schematic view of a fixing cap and a fixing frame of the grounding device.

Fig. 4 is a schematic view of the structure of the inner loop bar and the limiting hole of the grounding device.

Fig. 5 is a schematic view of a guide groove and a limit protrusion of a grounding device.

In the figure: 1. an outer sleeve rod; 2. a handle sleeve; 3. an L-shaped clamping groove; 4. an L-shaped toggle rod; 5. a fixing cap; 6. a fixing frame; 7. an inner loop bar; 8. a ground wire; 9. a grounding plug; 10. a mounting groove; 11. v-shaped buffer frames; 12. a clamping jaw; 13. a holding rod; 14. a fixed sleeve; 15. a limiting hole; 16. a wiring hole; 17. a guide groove; 18. a limit protrusion; 19. a movable plate; 20. and a return spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a grounding device comprises an inner sleeve rod 7, an outer sleeve rod 1 is sleeved on the circumferential outer wall of the inner sleeve rod 7, a locking component is arranged between the outer sleeve rod 1 and the inner sleeve rod 7, a fixing cap 5 is fixedly installed on the top of the circumferential outer wall of the inner sleeve rod 7, a grounding wire clamp is arranged on the top of the fixing cap 5, the grounding wire clamp comprises a fixing frame 6 fixed on one side of the top of the fixing cap 5, mounting grooves 10 are formed in two sides of the fixing frame 6, clamping jaws 12 are respectively rotatably connected with the inner walls of the mounting grooves 10, a V-shaped buffer frame 11 is fixedly installed between one side of each clamping jaw 12 and the inner wall of the mounting groove 10, a grounding plug 9 is inserted at the bottom of the circumferential inner wall of the inner sleeve rod 7 and located inside the outer sleeve rod 1, a grounding wire 8 is fixedly installed between the top of the grounding plug 9 and the top inner wall of the fixing cap 5, a wiring hole 16 for the grounding wire 8 to penetrate through is formed in the top of the inner sleeve rod 7, the grounding wire 8 is in a spiral spring shape, and the grounding wire 8 is in a spiral spring shape.

Specifically, the fixing cap 5, the fixing frame 6 and the clamping jaw 12 are all designed to be made of conductive metal materials, and the V-shaped buffer frame 11 is designed to be made of memory metal materials.

Specifically, the bottom of ground connection plug 9 is provided with spacing subassembly with the bottom of overcoat pole 1, and spacing subassembly is including the equidistance L type draw-in groove 3 of seting up in overcoat pole 1 bottom, and the circumference outer wall of ground connection plug 9 is fixed with fixed cover 14, and the circumference outer wall of fixed cover 14 is fixed with equidistant holding pole 13 that distributes, holds pole 13 joint in the inside of L type draw-in groove 3 for ground connection plug 9 enters into the bottom of overcoat pole 1 and deposits, avoids the most advanced potential safety hazard problem that appears of ground connection plug 9.

Specifically, the outer wall of the circumference of the outer sleeve rod 1, which is close to the bottom, is fixed with a handle sleeve 2, and the outer sleeve rod 1, the handle sleeve 2, the inner sleeve rod 7, the holding rod 13 and the fixing sleeve 14 are all designed to be made of insulating materials.

Specifically, the locking subassembly is including the spacing hole 15 of seting up in the inner loop pole 7 both sides equidistance, and the through-hole corresponding with spacing hole 15 position has all been seted up at the both sides top of overcoat pole 1, spacing protruding 18 has been pegged graft to the inner wall of through-hole and the inner wall of spacing hole 15, the one end of spacing protruding 18 is fixed with L type poking rod 4, guide slot 17 has all been seted up to the top and the bottom of through-hole, and top one side and bottom one side of spacing protruding 18 all are fixed with the fly leaf 19 of pegging graft in guide slot 17, be fixed with reset spring 20 between the one end of fly leaf 19 and the one end of guide slot 17, constitute the earthing device structure that can adjust length through the locking subassembly.

The working principle of the utility model is as follows: when the device is used, a user adjusts the length of the whole grounding device through the locking component, the grounding wire clamp is in butt joint with the switch, the holding rod 13 in the limiting component is separated from the L-shaped clamping groove 3, the grounding plug 9 falls under the action of self gravity and is inserted below the ground surface to form grounding operation, the coil spring-shaped grounding wire 8 is adopted to enable the grounding plug to have the functions of length adjustment and resetting, the grounding requirements of the switches with different heights are met, after the testing is completed, the grounding wire 8 can be stored in the inner sleeve rod 7 under the action of self resetting of the grounding wire 8, and the grounding plug 9 enters the bottom of the outer sleeve rod 1 to be stored.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Claims

1. A grounding device comprising an inner loop bar (7), characterized in that: the novel grounding device is characterized in that an outer sleeve rod (1) is sleeved on the circumferential outer wall of the inner sleeve rod (7), a locking assembly is arranged between the outer sleeve rod (1) and the inner sleeve rod (7), a fixing cap (5) is fixedly arranged at the top of the circumferential outer wall of the inner sleeve rod (7), a grounding wire clamp is arranged at the top of the fixing cap (5), a grounding plug (9) is inserted at the bottom of the circumferential inner wall of the inner sleeve rod (7), the grounding plug (9) is positioned in the outer sleeve rod (1), a grounding wire (8) is fixedly arranged between the top of the grounding plug (9) and the top inner wall of the fixing cap (5), a wiring hole (16) for the grounding wire (8) to penetrate through is formed in the top of the inner sleeve rod (7), and the grounding wire (8) is in a spiral spring shape;

the bottom of the grounding plug (9) and the bottom of the outer sleeve rod (1) are provided with limiting components.

2. A grounding device according to claim 1, wherein: the grounding wire clamp comprises a fixing frame (6) fixed on one side of the top of a fixing cap (5), mounting grooves (10) are formed in two sides of the fixing frame (6), clamping jaws (12) are rotatably connected to the inner walls of the mounting grooves (10), and V-shaped buffer frames (11) are fixedly arranged between one sides of the clamping jaws (12) and the inner walls of the mounting grooves (10).

3. A grounding device according to claim 2, characterized in that: the fixing cap (5), the fixing frame (6) and the clamping jaw (12) are all designed to be made of conductive metal materials, and the V-shaped buffer frame (11) is designed to be made of memory metal materials.

4. A grounding device according to claim 3, wherein: the limiting component comprises L-shaped clamping grooves (3) formed in the bottom of the outer sleeve rod (1) at equal distances, a fixing sleeve (14) is fixed on the circumferential outer wall of the grounding plug (9), holding rods (13) distributed at equal distances are fixed on the circumferential outer wall of the fixing sleeve (14), and the holding rods (13) are clamped in the L-shaped clamping grooves (3).

5. A grounding device according to claim 4, wherein: the outer wall of the circumference of the outer sleeve rod (1) close to the bottom is fixedly provided with a handle sleeve (2), and the outer sleeve rod (1), the handle sleeve (2), the inner sleeve rod (7), the holding rod (13) and the fixing sleeve (14) are all designed to be made of insulating materials.

6. A grounding device according to claim 1, wherein: the locking assembly comprises limit holes (15) which are formed in two sides of the inner sleeve rod (7) at equal intervals, through holes corresponding to the positions of the limit holes (15) are formed in the tops of two sides of the outer sleeve rod (1), limit protrusions (18) are inserted into the inner walls of the through holes and the inner walls of the limit holes (15), and one ends of the limit protrusions (18) are fixedly provided with L-shaped toggle rods (4).

7. A grounding device as in claim 6 wherein: guide slots (17) are formed in the top and the bottom of the through hole, movable plates (19) inserted into the guide slots (17) are fixed on one sides of the top and the bottom of the limiting protrusions (18), and reset springs (20) are fixed between one ends of the movable plates (19) and one ends of the guide slots (17).